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Hurricane Irma, Sep 8–12, 2017

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Hurricane Irma, Sep 8–12, 2017

Hurricane Irma, Sep 8–12, 2017

Chapter 1 · Approach

Irma turns toward the Florida Keys.

The replay opens as Irma nears the US.

13:00UTC · Fri, Sep 8, 2017 · 9:00 AM EDT

Space play/pause · ←/→ 10 min · Enter opens a link

Replay of past events. For current weather and warnings, see weather.gov. Links are rule-based facts. About and credits

Replay · AL112017

Irma: the story

Sep 8, 13:00 UTC – Sep 12, 07:30 UTC · 84 NHC advisories. Radar, warnings, storm reports, ground stops and SEC filings, in order, with 240 links that show their evidence.

  • 785 NWS warnings
  • 306 storm reports
  • 14 FAA airport programs
  • 134 8-Ks naming Irma
  • 240 rule-based links
  • 544 radar frames, 10 min apart

Approach

Sep 8–10

  1. The replay opens as the storm nears the US.Replay from here

The Keys

Sep 10

  1. Irma makes landfall near Cudjoe Key, Florida as a category 4 hurricane (115 kt, 931 mb).Replay from hereNHC Tropical Cyclone Report: Hurricane IrmaNHC best track (HURDAT2)

Marco Island

Sep 10

  1. Irma makes landfall near Marco Island, Florida as a category 3 hurricane (100 kt, 936 mb).Replay from hereNHC Tropical Cyclone Report: Hurricane IrmaNHC best track (HURDAT2)

Up the peninsula

Sep 11–12

The replay window ends before the storm dissipates.

Replay from here

Aftermath

Sep 12–Oct 27

  1. The replay window ends before the storm dissipates.Replay from here
  2. The aftermath: 125 8-Ks name Irma after the storm, the last on 2017-10-27.Replay from here

How we link records

RuleWhat it checksLinks
R4 solidA storm report inside a warning polygon while it was in effect102
R3 solidAn SEC 8-K that names the storm134
R2 dashedAn airport program inside a warning that had been in effect for over 60 min (context)3
R1c solidA weather airport program inside a convective warning or watch, within 60 min of issuance1

Solid lines mark rules that passed an independent check; dashed lines are context. Links are rule-based facts: each shows two records that overlap in place and time. How we know

Where this storm's data comes from

Every layer, the provider behind it and the period it covers.

LayerProviderPeriodRecords
MRMS SeamlessHSRNOAA/NSSL via Iowa Environmental MesonetSep 8, 13:00 UTC – Sep 12, 07:30 UTC544
NWS storm-based warning polygonsNOAA National Weather Service via Iowa Environmental MesonetSep 8, 13:00 UTC – Sep 12, 07:30 UTC785
NWS Local Storm ReportsNOAA National Weather Service via Iowa Environmental MesonetSep 8, 13:00 UTC – Sep 12, 07:30 UTC306
NHC advisories and best trackNOAA National Hurricane CenterSep 8, 13:00 UTC – Sep 12, 07:30 UTC84
FAA airport programs (ground stops and ground delay programs)FAA Air Traffic Control System Command CenterSep 8, 13:00 UTC – Sep 12, 07:30 UTC14
SEC EDGAR 8-K filingsU.S. Securities and Exchange CommissionSep 8, 13:00 UTC – Sep 12, 07:30 UTC134
  • Radar: NOAA/NSSL MRMS SeamlessHSR, via the Iowa Environmental Mesonet (IEM), Iowa State University
  • Warnings: NOAA/NWS, storm-based polygons via the Iowa Environmental Mesonet
  • Storm reports: NOAA/NWS Local Storm Reports via the Iowa Environmental Mesonet
  • Advisories and best track: NOAA/National Hurricane Center
  • Airport programs: FAA Air Traffic Control System Command Center
  • Filings: U.S. Securities and Exchange Commission EDGAR